Industrial Test Systems Spa eXact EZ

Questions and Answers

J
Jasmine LopezJul 28, 2025
What to do if the Industrial Test Systems Spa eXact EZ Test Equipment shows 'HI' on the LCD Display while reading?
- M
  michael40Jul 28, 2025
  If the Industrial Test Systems Test Equipment displays 'HI' on the LCD while reading, it means the result is above the detection level. To address this, re-run the test to verify the result.
S
seangrantAug 2, 2025
Why does the Industrial Test Systems Spa eXact EZ show 'LO' on LCD Display while zeroing?
- M
  Matthew RodriguezAug 2, 2025
  If the Industrial Test Systems Test Equipment displays 'LO' on the LCD while zeroing, several factors could be responsible. It could be due to low batteries, which requires replacing them. Another potential cause is a dirty cell; in this case, clean the cell. A cloudy sample might also trigger this error, so dilute the sample or use a sieve. If none of these resolves the issue, a bad LED might be the cause, and you should contact ITS.
R
Ryan CarpenterAug 9, 2025
What does it mean when the Industrial Test Systems Test Equipment shows 'LO' on LCD Display while reading?
- A
  Alexander HudsonAug 9, 2025
  If the Industrial Test Systems Test Equipment displays 'LO' on the LCD while reading, it indicates that the result is below the detection level. To confirm, re-run the test.
M
Melanie MossAug 15, 2025
What to do if the Industrial Test Systems Spa eXact EZ 'LO' flashes on LCD Display, then Err?
- J
  Justin SmithAug 16, 2025
  If the Industrial Test Systems Test Equipment's LCD Display flashes 'LO' and then shows 'Err', it usually means the test procedure for Combined Chlorine was not correctly followed. Carefully re-read the test procedure and ensure you follow the directions precisely.
R
Richard CochranAug 21, 2025
How to fix a dim screen or no response from Industrial Test Systems Test Equipment?
- M
  Mark MolinaAug 22, 2025
  If the Industrial Test Systems Test Equipment screen is dim or the meter isn't responding, the most likely cause is a low battery. Try replacing the batteries.

Summary

Fill, Dip, Read

Combined;Total Chlorine Test

Procedure for testing Combined and Total Chlorine levels using DPD-3 strips.

About

Accuracy & Calibration

Details the calibration standards and accuracy of the photometer.

Health Department Compliance

Explains compliance with health department requirements for chlorine testing.

About the Built-in Sample Cell

Information about the material, design, and longevity of the sample cell.

Cleaning the Sample Cell

Instructions on how to properly clean the photometer's sample cell.

Tips

Troubleshooting

Provides solutions for common issues encountered with the photometer.

The Spa eXact® EZ Photometer is an advanced digital photometer system designed for accurate water testing in spas, providing lab-quality results on-site. It is engineered for ease of use and reliable performance, making spa water quality maintenance straightforward.

Function Description:

The Spa eXact® EZ Photometer measures various water parameters using a digital display and specific test strips. It operates by detecting color changes in the water sample after a test strip is introduced, providing a numerical reading for each parameter. The device is waterproof (IP-67) and features a built-in 4ml sample cell for collecting water samples. It includes a "READ" button to start the test timer, a "MENU" button to cycle through test menus, and a "ZERO/ON" button to power the meter on and establish a baseline for testing. The system is designed to provide digital accuracy for better spa care.

Important Technical Specifications:

Waterproof Rating: IP-67
Sample Cell: Built-in plastic 4ml cell
Battery: Requires Four (4) AAA batteries (not included)
Calibration: All tests are calibrated at 100°F / 38°C using certified reference standards and spectrophotometric methods. The algorithms are designed to correlate with AWWA, US EPA, DIN, and ISO reference test methods for chlorine.
Wavelength: Uses a 525nm wavelength for DPD tests, meeting compliance requirements for measuring between 490 and 530nm.
Storage: Can store up to 20 results per test menu, totaling 100 results in memory.
Auto-shutdown: Features a 5-minute automatic shutdown timer.
Parameters Tested (with corresponding part numbers, ranges, resolutions, and accuracy):
- eXact Spa Water Refill Kit: Part # 486212, N/A
- Bromine, Total: Part # 486636, Range 0.08 - 17 ppm, Resolution 0.01 (0-2.0) / 0.1 (2.1-17 ppm), Accuracy 7.5%
- Alkalinity, Total: Part # 486641, Range 11 - 200 ppm, Resolution 1, Accuracy 5.5%
- Calcium (as CaCO3): Part # 486629, Range 19 - 550 ppm, Resolution 1, Accuracy 5%
- Chlorine, Free (DPD-1): Part # 486637, Range 0.05 - 12 ppm, Resolution 0.01 (0-2.99) / 0.1 (3-5.9) / 1 (6-12), Accuracy 5%
- Chlorine, Combined (DPD-3): Part # 486638, Range 0.05 - 12 ppm, Resolution 0.01 (0-2.99) / 0.1 (3-5.9) / 1 (6-12), Accuracy 5% (requires Free Chlorine DPD-1 to be run first)
- Chlorine, Total (DPD-4): Part # 486670, Range 0.05 - 12 ppm, Resolution 0.01 (0-2.99) / 0.1 (3-5.9) / 1 (6-12), Accuracy 8%
- pH: Part # 486639-11, Range 6.0 - 8.5 pH, Resolution 0.1, Accuracy 5%
DPD Test System Compliance: USEPA (DIN Standard 38 408 G4, ISO 7393/2) accepted for Free and Total Chlorine testing requirements. The eXact® Strip Micro CL (DPD-1, DPD-3, DPD-4) deliver the same chemicals in identical proportions as specified by AWWA method 4500-CI G.

Usage Features:

Standard Strip Method: This method is used for Total Alkalinity, pH, Free Chlorine (DPD-1), Total Bromine, and Calcium Hardness (20-second count-up).
1. Remove one eXact® Strip Micro from its packaging.
2. Turn the meter on by pressing ZERO/ON. The display will show the current MENU and the last test result.
3. Press MENU repeatedly until the display shows the desired parameter (e.g., "CL1" for Free Chlorine).
4. Rinse the sample cell three times with the water sample, then fill the built-in sample cell.
5. Press ZERO/ON. The display will show "0 PPM" or "PH".
6. Dip the eXact® Strip Micro into the sample cell and simultaneously press READ. A 10-second countdown timer will start. Move the strip gently back and forth (approx. 2 strokes/sec).
7. Remove and discard the strip after "1" disappears from the display.
8. The meter will measure the sample, and the result will be displayed.
Combined/Total Chlorine Test: This is a continuation of the Standard Strip Method after running Free Chlorine (DPD-1). The sample should NOT be discarded after the Free Chlorine test.
1. Remove one eXact® Strip Micro CL (DPD-3).
2. With the DPD-1 sample still in the cell, press ZERO/ON. The display will read "0 PPM".
3. Dip the eXact® Strip Micro CL (DPD-3) into the cell and simultaneously press READ. A 10-second countdown timer will start. Move the strip gently back and forth.
4. Remove and discard the strip after "1" disappears.
5. The meter will display the Combined Chlorine value.
6. To obtain the Total Chlorine value, press READ again.
Tips for Optimal Accuracy:
- Rinse the sample cell three times with the sample water before testing.
- Take spa water samples 18 inches below the surface.
- Fill the cell to capacity (4ml) without splashing.
- Test immediately after filling the cell.
- Use the cell cover when zeroing and reading samples outdoors to minimize sunlight interference.
- Discard any noticeably smaller or larger strips.
- Dip the strip for the entire countdown.
- Each eXact® Strip Micro is for single use only.
- Dry the outside of the meter before storage.
- Remove batteries for prolonged storage.
- Store the meter and test materials away from direct sunlight and chemical storage areas, and avoid temperatures above 90°F (32°C).
- Ensure the O-ring is attached to the screw when installing batteries.

Maintenance Features:

Cleaning the Sample Cell: Fill the sample cell with water and use the enclosed cleaning brush to scrub it thoroughly. Rinse the cell. Dish soap or distilled white vinegar can be used for cleaning if needed. Solvents like acetone should NEVER be used. Cleaning the cell with water and a brush after each test is recommended for best accuracy and prior to storage.
Battery Installation: Requires a Phillips head screwdriver to remove the screw from the base. Install four new AAA batteries, then replace the base firmly while tightening the screw. The meter will power on automatically.
Troubleshooting:
- Dim screen or no response: Check for low battery; replace batteries.
- LO on LCD Display while zeroing: Could be low battery, dirty cell, cloudy sample, or bad LED. Replace batteries, clean cell, dilute sample/use sieve, or contact ITS.
- HI/LO on LCD Display while reading: Result is above/below detection level; re-run test to verify.
- LO flashes then Err for Combined Chlorine: Improper test procedure; re-read and follow directions carefully.
- HI flashes then Err for Combined Chlorine: Result is above detection level; dilute and re-run test.
- Total Chlorine result less than Free Chlorine: Improper test procedure; re-read and follow carefully.

Warranty and Support:

The eXact® photometer comes with a two-year warranty from the date of purchase, covering defects in materials and workmanship. Registration within 30 days of purchase is required to activate the warranty. Warranty does not cover damage from abuse, battery corrosion, or improper use. Technical support is available via phone or email.